On Thu, 2024-01-25 at 05:32 +0800, Xi Ruoyao wrote: /* snip */ > and the "interesting" aspects: > > 1. If I change the third parameter of "read" to any value >= 8, it no > longer fails. But it fails with any integer in [1, 8). > 2. It fails no matter if I initialize buf. > 3. It does not fail on arm64 (the only other port using > lock_mm_and_find_vma I have access to). Correction: I'd not realized many ports use lock_mm_and_find_vma even before this series of changes. I also have access to x86_64 and loongarch64, and the failure seems specific to MIPS. -- Xi Ruoyao <xry111@xxxxxxxxxxx> School of Aerospace Science and Technology, Xidian University
